| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wallinger Dirk | Chief Executive Officer, Director | C/O YORK SPACE SYSTEMS INC., 6060 S WILLOW DRIVE, GREENWOOD VILLAGE | /s/ Monica Palko, by Power of Attorney | 11 Mar 2026 | 0002100113 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | YSS | Common Stock | Award | +211,176 | +2.2% | $0.000000* | 9,783,222 | 30 Jan 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Represents restricted stock units which vest over three years. This amendment corrects the original Form 4, which inadvertently included 358,744 shares of restricted stock, which shares were previously reported by Mr. Wallinger on the Form 3 filed January 29, 2026. |